Sphacelotheca hydropiperis (Schumach.) de Bary 1884

Foodplant / pathogen
sorus of Sphacelotheca hydropiperis infects and damages live ovary of Persicaria hydropiper
Remarks: season: 9-10
Other: major host/prey

Foodplant / pathogen
sorus of Sphacelotheca hydropiperis infects and damages live ovary of Fallopia convolvulus
Remarks: season: 8-9

Foodplant / pathogen
sorus of Sphacelotheca hydropiperis infects and damages live ovary of Persicaria lapathifolia
Remarks: season: 8-9

Foodplant / pathogen
sorus of Sphacelotheca hydropiperis infects and damages live ovary of Persicaria maculosa
Remarks: season: 8-9

Foodplant / pathogen
sorus of Sphacelotheca hydropiperis infects and damages live ovary of Persicaria laxiflora
Remarks: season: 8-9

Sphacelotheca hydropiperis (Schum.) DeBary, Verg
Morph. Biol. Pike 187. 1884.
Uredo Hydropiperis Schum. Enum. PI. Saell. 2 : 234. 1803. UsHlago Candolld Tvil. Ann. Sci. Nat. III. 7: 93. 1847. Ustilago Hydropiperis Schrot. Beitr. Biol. Pfl. 2 : 355. 1877.
Sori in ovaries, forming oblong or ovate bodies about 3-5 mm. in length, protected by floral envelopes at base, with false membrane dehiscing at apex, revealing purple-black spore-mass and ijiore or less evident columella ; sterile cells besides forming membrane also constituting part of the columella, spore-like (often probably immature spores) , hyaline or occasionally violettin ted, easily separatiiig into individual cells, chiefly subspherical, 6-17 ^ ; spores pxirplish, broadly oblong or ovate but chiefly subspherical, minutely but abundantly verruculose, mostly 10-17 ii in length.
On Polygonaceae :
Persicaria Hydropiper {Polygonurn Hydropiper) , Nebraska, Rhode Island.

Sphacelotheca borealis (Clinton) Schcilcnb. Ann. Myc. S: 386. 1907 Sphacelotheca Ilydropipcrii var. borealis Clinton, I'roc. Boston Nal Ilisi 31: 395 1904. Sori in the ovaries, forming oblong or ovate bodies, 3-4 mm. in length, protected by floral envelopes at base, with false membrane dehiscing at apex, revealing a dark-purple spore-mass and a well-developed robust columella; sterile cells hyaline or slightly tinted, subspheric, thickwalled, chiefly slightly larger than the spores; spores violet-purple, ovoid to spheric or occasionally more irregular, often apparently smooth but really minutely granular, chiefly 9-11 ;i in length.
On Polygonaceae :
Bistorta bistortoides (Polygonum bislcrtoides) , Colorado, Washington, Wyoming.
Persicaria {Polygonum) sp., California, Oregon; Nova Scotia. T'VTE locality: Mt. Rainier, Washington, on Polygonum bistortoides. Distribution: Washington and California to Colorado; Nova Scotia; also in Switzerland.

Sphacelotheca hydropiperis je grzib, co go nojprzōd ôpisoł Heinrich Christian Friedrich Schumacher, a terŏźnõ nazwã doł mu de Bary 1884. Sphacelotheca hydropiperis nŏleży do zorty Sphacelotheca i familije Microbotryaceae. Żŏdne podgatōnki niy sōm wymianowane we Catalogue of Life.

蓼轴黑粉菌（学名：Sphacelotheca hydropiperis）是属于黑粉菌目黑粉菌科轴黑粉菌属的一种真菌，寄生在蓼属植物上。该种分布于中国、日本、菲律宾、印度尼西亚、尼泊尔、印度、斯里兰卡、哈萨克斯坦、土库曼斯坦、阿塞拜疆、巴基斯坦、冰岛、丹麦、挪威、瑞典、芬兰、爱沙尼亚、立陶宛、俄罗斯、乌克兰、波兰、捷克、斯洛伐克、匈牙利、德国、奥地利、瑞士、英国、法国、意大利、南斯拉夫、罗马尼亚、埃塞俄比亚、澳大利亚、新西兰、巴布亚新几内亚、格陵兰、加拿大、美国、墨西哥、厄瓜多尔、巴西、智利、哥伦比亚、阿根廷等地。